一个灵活的多式脉冲传感器用于可穿戴的连续血压监测
Shuo Tian1, Liangqi Wang1, Rong Zhu1
1State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instrument, Tsinghua University, Beijing, 100084, China. zr_gloria@mail.tsinghua.edu.cn.
Materials horizons
|March 5, 2024
概括
一个新的灵活传感器使用皮肤精确测量了手腕脉冲波.
科学领域:
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
- 心血管监测 心血管监测
背景情况:
- 无袖手腕脉冲监测对于早期发现心血管疾病至关重要.
- 辐射脉冲波形测量是具有挑战性的,因为信号的变化和文物.
- 穿戴压力和皮肤温度的变化会导致血压估计中的错误.
研究的目的:
- 开发一种灵活的多感应脉冲传感器,用于高准确度的辐射动脉脉冲波测量.
- 为了提高无袖血压监测的准确性和防伪性能.
- 为了实现精确的临床诊断和预防心血管疾病.
主要方法:
- 利用了人体皮肤和薄膜热敏电阻的自然压热传导.
- 集成的同时检测脉冲波形,皮肤温度和佩戴压力.
- 采用多层感知子用于特征融合和血压估计.
主要成果:
- 实现了高准确度脉冲测量,具有广泛的压力范围 (228.2 kPa) 和低检测极限 (4 Pa).
- 显示出出色的线性 (R2 = 0.999),低歇斯底里 (2.45%) 和快速响应 (88 ms).
- 成功抵制文物效应并准确估计血压,具有良好的概括性.
结论:
- 灵活的多感应传感器提供准确可靠的无袖血压监测.
- 集成的脉冲,压力和温度传感可以提高反物体性能.
- 这项技术有望用于非侵入性心血管健康评估和疾病预防.
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